2398821863 has 2 divisors, whose sum is σ = 2398821864. Its totient is φ = 2398821862.

The previous prime is 2398821857. The next prime is 2398821871. The reversal of 2398821863 is 3681288932.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2398821863 - 2¹² = 2398817767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2398821463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1199410931 + 1199410932.

It is an arithmetic number, because the mean of its divisors is an integer number (1199410932).

Almost surely, 2^2398821863 is an apocalyptic number.

2398821863 is a deficient number, since it is larger than the sum of its proper divisors (1).

2398821863 is an equidigital number, since it uses as much as digits as its factorization.

2398821863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 995328, while the sum is 50.

The square root of 2398821863 is about 48977.7690692420. The cubic root of 2398821863 is about 1338.6467854935.

The spelling of 2398821863 in words is "two billion, three hundred ninety-eight million, eight hundred twenty-one thousand, eight hundred sixty-three".